Paulingite
方碱沸石
🗣️ 情景例句
I just don't know what to say.
我真不知该说什么好。
In my opinion, the product must be priced under $ 300.
就我的意见来说，产品价格必须订在300美元以下。
At present, they are visiting all parts of the country.
目前他们正在全国各地巡回演出，